Firearm sound suppressor



FIG. 1 is an isometric view of an embodiment of our design for a firearm sound suppressor;

FIG. 2 is a right side view of the design for the firearm sound suppressor shown in FIG. 1;

FIG. 3 is a left side view of the design for the firearm sound suppressor shown in FIG. 1;

FIG. 4 is a front view of the design for the firearm sound suppressor shown in FIG. 1; and,

FIG. 5 is a rear view of the design for the firearm sound suppressor shown in FIG. 1.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

CLAIM We claim the ornamental design for a firearm sound suppressor, as shown and described. 